Monitor pixel aspect ratio and deinterlacing

[jaobr]

I am using a plasma tv with resolution 1024x768 and aspect ratio 16:9.
I set the Monitor pixel aspect ratio to 4:3 and the video is displayed with the correct aspect ratio. But if I turn on deinterlacing the picture get wrong witdh (to narrow).
Is it a bug or I am missing some settings?

[DJ]

Is the source cropped or does it have a letter box?

Cropped video will show up in a window using VLC with NO black borders.

[jaobr]

The source is a http streamed transport stream with aspect ratio 16:9.
No cropping is used. If deinterlacing is turned off it fills the entire screen
as it should, but when deinterlacing is turned on I get black bars on the
sides and wrong aspect ratio on showed video.

[jaobr]

I've done some more testing and found that it's not only the deinterlace filter that gives wrong aspect ratio
when used together with Monitor pixel aspect ratio. It looks like the monitor pixel aspect ratio is applied
for every video filter in the filter chain. For every filter I apply the width get narrower.

[DJ]

The source is a http streamed transport stream with aspect ratio 16:9.
No cropping is used. If deinterlacing is turned off it fills the entire screen
as it should, but when deinterlacing is turned on I get black bars on the
sides and wrong aspect ratio on showed video.

If ther is no cropping and the video has black borders in a Windowed mode the video is 4x3 not 16x9.

[Timo]

I have the same problem as jaobr. I have set the monitor pixel aspect ratio to 4:3 so I can watch videos on my widescreen tv. The source is a dvd with 16:9 aspect ratio. When I turn on deinterlacing the picture turns to 4:3 ratio, so that there's black bars on both sides of the picture. I have tried different settings on monitor pixel aspect ratio and source aspect ratio, but I haven't gotten the video to display properly.

[DJ]

Assuming a 3:2 pull down (most common for commercial DVDs) deinterlacing should not be necessary.

But I did try the filter on a commercial DVD and didn't experience your problem (ref VLC 0.8.6b), however the player did crash when I removed the filter. This has been going on forever (long as I can remember) when the filter is NOT required.